diff options
| -rw-r--r-- | drivers/hid/hid-core.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 2884b036495a..d73a768e176e 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -26,6 +26,7 @@ #include <linux/input.h> #include <linux/wait.h> #include <linux/vmalloc.h> +#include <linux/sched.h> #include <linux/hid.h> #include <linux/hiddev.h> @@ -758,7 +759,9 @@ static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n) { u64 x; - WARN_ON(n > 32); + if (n > 32) + printk(KERN_WARNING "HID: extract() called with n (%d) > 32! (%s)\n", + n, current->comm); report += offset >> 3; /* adjust byte index */ offset &= 7; /* now only need bit offset into one byte */ @@ -780,8 +783,13 @@ static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u3 __le64 x; u64 m = (1ULL << n) - 1; - WARN_ON(n > 32); + if (n > 32) + printk(KERN_WARNING "HID: implement() called with n (%d) > 32! (%s)\n", + n, current->comm); + if (value > m) + printk(KERN_WARNING "HID: implement() called with too large value %d! (%s)\n", + value, current->comm); WARN_ON(value > m); value &= m; |